Title :
Flat Spectral Response Digital Micromirror Device-Based Variable Fiber Optic Attenuator
Author :
Sheikh, Mumtaz ; Amin, Muhammad Junaid
Author_Institution :
Dept. of Phys., Lahore Univ. of Manage. Sci., Lahore, Pakistan
Abstract :
To the best of our knowledge, for the first time, an all-digital broadband variable fiber optic attenuator (VFOA) is demonstrated using the Texas Instruments´ digital micromirror device (DMD) that does not use any narrowband or polarization-sensitive components. Simulations show that the proposed VFOA has a truly flat spectral response with a wavelength-dependent loss (WDL) of <;0.01 dB over the C-band 1530-1560 nm with a DMD designed to operate in the infrared. Experimental results show a WDL of ± 0.13 dB and a dynamic range of 38.6 dB with a visible DMD.
Keywords :
micro-optomechanical devices; micromirrors; optical attenuators; optical fibres; DMD; VFOA; WDL; digital micromirror device; flat spectral response; variable fiber optic attenuator; wavelength 1530 nm to 1560 nm; wavelength-dependent loss; Attenuation; Broadband communication; Diffraction; Micromirrors; Optical attenuators; Optical fibers; Broadband communication; digital micromirror device (DMD); microelectromechanical devices; optical fiber devices; variable optical attenuator;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2012.2224860
